i looked around but i couldnt find anything that said what the strongest 7.5 LSD was. is Auburn the strongest you can get for the 7.5 rear end?
Why, if you don't mind... why are you going 7.5 insted of 8.8. And are you looking for a tought aftermarket unit or stock? 83-86 TC's had a l.5 TL unit in them.
a factory ford t-lok would be fine for your application. my friend runs 11.2's and gets 1.5 60' on a 7.5" t-lok.
Fila, because i dont have the money to buy a 8.8 right now.
the only t-loks i can find are for V-6. i have that and 3.73 gears in my room right now but i dont know how strong it is. i have 10.8inch tires in the back right now.
the gear is also made for a V6.
Check around for some pre-'87 TC rears.I had a TL from an '86 with the 7.5.Took everything I threw at it.No problems.
What does a V6 have to do with anything? Just find your self a nice, used 83-86 TC and take the rear. For what you'll pay for a new auburn unit.. you can get a 7.5, new fluid have it installed
Detroit Truetracs change the failure mode to the ring/pinion. That's as strong as you can get.
If you look around enough,bargains are out there.My 8.8 TL rear with 3.55's was $66.00.
Run it till it won't go no more. the 7.5 is not all that weak.
I'm still running it,I do have a 8.8 on standby for it if it ever gives out or winter,which ever comes first.
my 7.5 went through a lot last fall,and never showed any trouble.We did a few runs at the strip,then,did about 30 (yes,I said 30) wicked long burnouts on Main Street with the car clubs.I agree with Kitz.It's not as weak as people say.
Youd break the rear before youd break the carrier.
All three of the 7.5's I had that grenaded, blew both the bearing caps and the spider gears at the same time.
From the 7.5's I've seen granaded the spider gears are the weakest link.
There is no differance, It will break no matter what you do to it the 7.5 is weak,save your money and buy an 8.8.
mine lost 3 teeth off the ring gear in the cougar.
The first one i had munched the spiders and i lost an axle (not a good experiance).
I had a stock 2 something ,Put the trak lok in and tour it up hard.with the 345's in now.I do know rears tho!,thats female rears to, for you sick heads!
I did mine right because Ive done them a long time.But I am getting relearned here every day.
well, even if i do find a 8.8, i dont have the tools, time, and experience to change it, so im going to end up paying a load of money to have it put in.
so Aurbun 7.5 LSD?
Did you listen to us? It's eaiser to swap a whole rear then swap in a auburn. Just wait and do better. If you hold out for an 8.8 great. if you need a rear now go 7.5 TL from a early TC. You'll need tools and experience anyways to change the center section anyways
THE STRONGEST 7.5" UPGRADE YOU CAN MAKE....is an upgrade to an 8.8. The 7.5's are rediculously weak...my t-bird had a very well-maintained 92k miles on it when i got it...after about a year of ownership the carrier as well as the ring and pinion were effed...yeah, I did more power slides then I can remember and probably spent 1/4 of my time sideways...but that's still pretty bad...I didn't realize how bad it was until I replaced it with an 8.8...never had trouble since.
Buying a turbo coupe 8.8 and having it installed will probably cost you as much as a 7.5 limited slip with new bearings and gears installed and set up....and it's still not as strong and you don't get disk brakes in the rear...and the guy at the shop might not set your gears up right and you're screwed again.
hell, go ford 9"......like me.:flip:
:birdsmily:
That works if you have the money for it.
i just called around junk yards are the cheapest one i could find is $200 and its a 45minutes to and hour drive.
i dont have a truck either to take it back home with,
be patient and wait for somebody local to sell a rear...I paid $200 for an 8.8 rear out of a fox mustang with 3.08 gears and an ailing trac-lok...I got ripped, but you should be able to get a disk brake rear with 3.55's or 3.73's for around that price.
ok, i'll be patient, i asked around and the cheapest place would instal it for $1000. yikes!
Money helps, but it only cost me $575 to put mine in. I don't think that is too outrageous......
:birdsmily:
That's absurd...it's a 3hr job including bleeding the brakes! I'd do it in my driveway for $500 for ya...lol.
Doing a rear is pretty easy...jackstands under the lower control arms...disconnect the brake hose and e-brake cables along with the shocks(at the diff end of course), then 4-bolts and its out. Installation is reverse of removal. You and a mechanically inclined buddy could do it in a weekend at a nice easy pace.
9" rears are expensive...yeah you could get a 9" out of a pick up but then it has to be narrowed, needs the right housing ends welded on, needs all the right bracketry welded on...and you'd better not screw that part up, and the upper control arm locations will be incorrect which will throw out your suspension geometry big time...not to mention you'd have to pop for custom axles...there is no bolt-in 9" available for these cars unless you go to Currie or something...then it's gonna run a $2k minimum.
Nope. Don't have to pay anything for the labor as it is done by myself and a friend. He has the shop, and all the right equipment to do so. Got the strange axles from him(a steel pretty much as he was my father in law) and the 3:50 trac loc rear gears. Time consuming yes, to get the right measurements, but worth it in the long run. He puts 9" rears in everything. An 8.8 probly would hold up to a 460 no problem, but I know a ford 9" won't have a problem. I got lucky, thats all. Happens to me once in a great while. You can't tell me that if you were in the same position, you wouldn't have done the same. I didn't have to weld on any special brackets on the end of the housing either, I used the same brakes that came on the rear. Same ford pressed on bearing. 5/16 steel made the rest of the brackets. Like you say, as long as its done right, no worries.:D
:birdsmily:
You can change it.4 bolts,the nuts for the shocks,disconnect the brake lines,release the parking brake lines,out it comes.Reverse the process to install it.with a buddy,you should be able to change it in an hour or so.Get two jack stands,and a hydraulic jack.After I removed the rear,I put the tires on it to roll it where I needed it.
Be patient and keep looking and you'll eventually find a great deal.The standard fee for a TC rear around here is $150.00 to $200.00.Not too bad.
If you find one I will put it in for you for $200 plus any parts you might need, like brakes. You can help me and learn, I have a hoist and shop so we don't have to crawl around in the driveway. Don't really know what we would do about the speedo if different gear ratio, have to buy a gear from Ford but you can only go so far one way or the other.
What year do you have? Switching to 4wd brakes could cause other problems. I think a Mustang rear would be about 1" narrower for each side but I don't think this is a problem. Chuck will tell me to look this up under search.
TED
Olympia, 360-943-7604
Thanks for reiterating that for me vinnie...lol.
hey Ted, thanks, when i find a rear end, you'll be the first person i let know! i'll look down there for a rear end. my cousin lives that way so he could help me look around for one. do TC rear ends come with a posi?
Posi is a GM term... Yes all '87-'88 TCs have a 8.8 Traction Lock... The 86-earlier are 7.5"
ok, thanks for letting me know! i'll check craigs list and see what they have
hey, i found a rear end!! $75!! out of a 93 cobra. but i cant contact the guy!! i dont know how!!!
hope you have different offset wheels to throw on. mustang rears are narrower then birds
Hey,I know what it takes to make it fit the T-Bird (width).Easy to do with a few parts..Right Chuck?LOL.For $75.00,make sure it is what thet say it is.That's really cheap.On the other hand,I got mine for $66.00.I did ask a lot of questions.Good luck contacting the guy.
ted. i sent you the page that i found the rear end on.
does anybody know how to contact through craigslist?!?!
Also look for a Couger 8.8. This will make an easy change so you don't have to do a disk brake swap. Though, you won't have 3.73 gears, only 2.73.
well 3.08 trac loc if u find an XR-7 or one with a towing package, not positive on the tow one tho
oo im going to by 4.10 gears for it anyways.
'93 cobra rear is virtually the same as a TC rear.
Just hit the link at the top of the page and it will take you to email.
The 93 rear on Craigslist does not have brakes and I'm not sure yours will transfer over. Buying things incomplete may not be a good deal.
In the same ad he has a T-bird rear for free if you take the whole car, without title. Maybe you can talk him into pulling the rear for you. He says it a 8.8 with 3.55 so it sounds like a Turbo Coupe.
Also he said he may have a 3.73 rear in a couple of weeks out of a Mustang, this sounds like the best deal to me.
IMO 4.10 gears are too low.
What year car do you have?
TED
The drums can work on a disk brake rear, you just need to use your stock axels, drums, backing plate.. exc. Thats what I'm doing for my 3.55 TC rear soon enough
But if this is a Cobra rear could it be 31 spline in 1993. Are you sure the axle width is the same?
I know we covered this before but I seem to think the 87-88 non-turbo housing was wider?
TED
I forgot about that. Then it might not work. If you were closer, I could give you my spair rear I can get my hands on, a 3.08 TL 8.8 from a stang, already with Tbird axels and drums on/in it
Here's some very good info.
http://www.foxtbirdcougarforums.com/showthread.php?t=13253&highlight=housing+width
The 93 Cobra is narrower than the 86-88 T-bird housing and the axles and brakes will not interchange. Mustang did not go to 31 spline till 94.
I don't think the 93 rear would be the best choice if you do not get the brakes to go with it.
The Turbo couple woudl be a good choice but I don't think I know what to do about converting to 4 wheel disc.
I think the best choice is to find a 8.8 Mustang rear, it will be a bit narrower but you can live with it or adjust this with wheels.
TED
You can ballance the offset of the stang' rear with the axels and brake setp from your old rear
I don't think so, the housing is wider in the T-bird, no work.
If you go to here
http://car-part.com/
It will show you that Lacey Auto Wrecking has a 1988 Mustang V-8 rear for $175
1988
Rear Axle
Ford Mustang GT,302,5 Sp,RWD 111,000 A JJ4064 $175 Lacey Auto Wrecking USA-WA(Lacey) 1-360-413-0658
I forgot, he has the later 7.5". I have an early 83-85.5 rear, the same as a stang'. Thats why I can interchange . Sorry
is i get a mustang rear can i still have my 275'2 on it?
I did not know you had the wide tires on there already. You need to look at the inside to see if you have 1 inch plus of clearence. If your wheels have a 5.5 inch offset than you are okay, if they have 6.5 you are not.
Just look under the car and see how much clearence you have on the inside.
TED
i have a inch or 2, so its ok then? i'll just look around for a TC rear end so i dont have to worry about that.
and at the top of the link on criags list when the email thing pops up, i dont know how to send it. i dont know what Cc means.
If have a inch or two it would be better with the Mustang.
TED
you dont have to worry about that. just fill out the subject line and body. then click send.
TED, do you know how to out in gears too? i want to by a set of 3.73 gears too.
I'm not the best at this, if you buy Ford gears and not aftermarket I can most likely get them to work. I always just used the same shims and spacers and always lucked out.
I know this is all wrong but it worked for me in the past.
Gears like these http://cgi.ebay.com/ebaymotors/3-73-gears-8-8-Ford-Mustang-GT-LX-F150_W0QQcmdZViewItemQQcategoryZ33731QQihZ018QQitemZ280141279905QQrdZ1QQsspagenameZWDVW Looks like this guy sells lots of gears.
There are also some on ebay for $59.95 but the guy has terrible feedback.
TED
hwo much more do you want for putting in the gears? i just bought new bearings and shims. and im buying a install kit, (gaskets and such)
would this be ok?
http://cgi.ebay.com/ebaymotors/Ford-8-8-Axle-3-73-Ratio-Gearset-Ring-Pinion_W0QQitemZ160146933363QQihZ006QQcategoryZ33731QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
If the price stays there it will be fine. Don't really need an install kit or new bearings. Like I say I'm not a gear expert but we can try if you don't come back at me.
TED
well, i'll just buy a cheap set of 3.73, kinda like the ones like i posted right above.
it will be another learning experience...
hey TED!
i found this one.
http://portland.craigslist.org/wsc/pts/395942135.html
but i cant send a message to the guy asking for pictures...
Oregon! Why not just get the one in Lacey for $25 more? I'm confused.
1988
Rear Axle
Ford Mustang GT,302,5 Sp,RWD 111,000 A JJ4064 $175 Lacey Auto Wrecking USA-WA(Lacey) 1-360-413-0658
It cost me $15 in gas to go to Mossyrock and back tonight.
TED
Just buy a whole rear, or spend the money to have it done right....I had 3.73 ford racing gears put in my old car and they still had to shim the carrier because it was off...you can get away with it sometimes...but nobody is lucky forever...
i cant find the one in lacey anymore in craigslist, i looked, but this is the only one that i could find.
It's at the wrecking yard in Lacey and I found it on part finders. I posted the phone number for you.
1-360-413-0658
Not on Craigslist.
TED